Exhibit 215: Sea-Tac Airport Third Runway 401 Permit Negotiations — Final Draft Meeting Notes, October 13, 2000

These are the official draft meeting notes from October 13, 2000 negotiations between the Port of Seattle, the Washington Department of Ecology, and King County regarding the 401 Water Quality Permit for Sea-Tac Airport's proposed third runway. The meeting covered technical issues including stormwater management, natural resource mitigation planning, and a master list of permit issues tracked by resolution status. Representatives from multiple agencies worked to resolve outstanding questions about detention sizing, wetland hydrology, and environmental compliance requirements.

Notes

Exhibit 215 (AR 018780, ECY00009114–9116), final draft meeting notes from October 13, 2000 Sea-Tac Airport Third Runway Section 401 permit negotiations between Port Of Seattle and Washington State Department of Ecology (Ecology), with King County and Parametrix also attending. Covers Natural Resource Mitigation Plan (NRMP), Stormwater Master Plan (SMP) detention sizing issues including HSPF and KCRTS modeling, IWS pump station overflow, Des Moines Creek Basin Plan consistency, Walker Creek calibration, SDW2, SASA, SDS-7, SDS3-A, SDS-3, SDS-2 collection areas, SR 509 interchange impacts, aquitard breaches, runway de-icing dissolved oxygen study, Kludt settlement compliance, contaminated soil stockpile, NEPA/SEPA revision timing, and wetlands 18, 37, 39B hydrology. Prepared by Kate Snider, Floyd & Snider Inc. Master list of 401 technical issues updated; Pollution Control Hearings Board administrative record document.

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